Caribbean Sweet Potato-and-Black Bean Salad

Ingredients

• 1 cup (1/2-inch) cubed peeled sweet potato
• 1/4 cup banana chutney
• 2 tbsp fresh lime juice
• 2 tsp olive oil
• 1 tsp Dijon mustard
• 1/8 tsp salt
• 1/8 tsp pepper
• 1 garlic clove, minced
• 1/2 cup sliced green onions, divided
• 1 (15-ounce) can black beans, rinsed and drained
• 3 cups torn spinach